package com.chengqs.algorithm.recursionsingle;

/**
 * 阶乘
 */
public class E01Factorial {
    public static int f(int n) {
        if (n == 1) return 1;
        return n * f(n - 1);
    }

    public static void main(String[] args) {
        System.out.println(f(5));
    }
}
